Brake.



No. 688,002.A Patented Dec. 3. |90I.

` S. L. MITCHELL BRAKE.

:Application led Feb.' 28, 190L\ (No Model.)

'llllllllmmlllmllmgl I Hummm l Smm/al L M tc/ke ll.

@9i vupnca v l 13511 c1 www @Wig/ L v UNITEDl STATES PATENT OEEICE.

SAMUEL L. MITCHELL, OF TALAVVAII, MISSISSIPPI.

BRAKE.

SPECIFICATION formingpart of Letters Patent No. 688,002, dated December 3, 1901.

Original application filed August 27, 1900, Serial No. 28,194. No. 49,331.

of Mississippi, have invented certain new and Y useful Improvements in Brakes; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in brake mechanism for wagons, and more particularly to automatic brakes; and it consists of abrake-beam attached to the pole or tongue of a wagon and capable of moving rearwardly with a rearward movement of the tongue.

It also consists of a slotted brake-beam moving upon forwardly-extending beams of a wagon, a slotted tongue connected therewith by means of clips and brace-rods, the construction being such that a backward pressure upon the tongue will apply the brake-beam to the wheels of the wagon.

It further consists of other novel constructions, combinations, and arrangements of parts, as will be hereinafter fully described and claimed.

In the accompanying drawings, Figure 1 represents a top plan view of a portion of the front truck of a wagon having my improved brake mechanism applied thereto. Fig. 2 is a detail cross-section of the brake-beam and longitudinal section of a part of the tongue, showing the slot therein; and Fig. 3 is a horizontal section taken on line of Fig. 2.

The present application is a division of a former application filed by me on the 27th day of August, 1900, Serial No. 28,194, for improvements'in wagons, and this division is made in accordance with the requirements of the Patent Oce.

My improved brake mechanism was originally intended to be applied to the construction of wagon fully described in the aboveidentified application; but it may be applied to any vehicle to which its construction makes it appropriate.

The tongue 1 is mounted between the forwardly-extending bars 2 2 of a vehicle, which Divided and this application tiled February 28,1901. Serial (No model.)

are secured to the front axle of the same and are arranged with suiiicient space between them to accommodate the said tongue. Sliding upon these beams 2 2 is a brake-bar, as 3, which is made sufficiently long to project at its ends in front of the vehicle-wheels 4. The ends of the brake-bar are made to conform with the shape of the wheels and, if desired, may be shod with any suitable braking-surface. The brake-beam 3 is provided with slots, as at 4 4, Fig. 3, for loosely engaging the supporting-beams 2 2, so that it is free to slide back and forth upon the same. The beam 3 has secured to its central portion a clip or band 5, which is firmly secured thereto and has a sufficient space left between it and the front side of the beam 3 to accommodate the movement of a clip 6, secured to the rear end of the tongue 1. The tongue is also pivoted at its rear end upon a pivot pin or bolt 7, so that the pole is free to move up and down, according to the movement of the team pulling the vehicle. T he pin 7 passes through a longitudinal slot, as 8, formed in the end of the tongue and through the side portion of the clip 6, so that when the team backs or stands still the wagon can run upon the brake-beam S-that is to say, the beam 2 can move forward with respect to the tongue 1 and the wheels 4 4 can run against the ends of the brake-beam 3, which willV be thus applied according to the force with which the vehicle is propelled forward. As soon as the team moves forward again the tongue will move forward upon the pin 7, carrying the brake-bar 3 with it, and free the same from its contact with the wheels, and when the tongue has reached the limit of the elongated slot 8 it will begin to pull the wagon through the agency of` the pin 7 and the bars or beams 2. The clip 5 is made of sufficient height with respect to the clip 6 to accommodate the pivotal movement of the rear end of the tongue 1. Then it is desired to back the team and not apply the brake,` the rearward movement of the tongue is prevented by inserting a pin, as at t), in front of the pin S. This will prevent any movement of the tongue upon the said pin and when the team is backed it will force the wagon backward without applying the brake. The ends of the brake beam are preferably strengthened and braced with respect to the tongue l by means of connecting rods or links, as l0 10.

When other teams besides the pole-team are employed in pulling the vehicle, I preferably connect them to the same by means of a draft mechanism which does not pull directly upon the pole l. This comprises a draft-rod 1l, which slides through a bearing beneath the tongue at the forward end thereof and is connected directly with the front axle by means of a link 12. The forward team, therefore, which may be hitched to an eye in the forward end of the draft-rod l1, will pull directly upon the front axle of the vehicle, and the action of the pole or rear team in applying the brake will be entirely irrespective of the action of the front team.

It will be apparent that the front end of tongue l cannot move laterally without cor-v respondingly moving the bars 2, and thereby the wheels 4, obviating the possibility of an application of the brake by a side movement of the team.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A brake mechanism, com prisinga brakebar mounted in front of the front truck of a vehicle, means for permitting movement of the said brake-bar backward and forward, a tongue carrying the said brake-bar, means for securing said tongue against lateralmovement with respect to said truck, and means for guiding the brake-bar and tongue in their backward and forward movement, the structure being such that when the team pulling the vehicle halts or backs, the brake-bar will be forced against the wheels of the said truck, substantially as described.

2. A brake mechanism, comprising a longitudinally-moving tongue, a pin for pivotally supporting the said tongue and engaging a longitudinal slot formed therein, a brakebeam sliding upon the supporting-beams of the front truck of a vehicle, a clip upon the said brake-beam, a clip or coupling upon the tongue engaging the clip upon the brakebeam for movably connecting the tongue with the same beam, brace-rods for connecting the tongue with the brake-beam, the structure being such that when the team backsor stops, the brake-beam will be forced against the wheels of the truck, substantially as described.

3. A brake mechanism,comprising a tongue pivotally mounted upon a pin, a pin supporting the said tongue and engaging a longitudinal slot formed therein, a brake-beam attached to the said tongue and slidably moving upon the supporting-beams of the front truck of a Vehicle for engaging the wheels' of the said truck, a draft-rod mounted beneath the tongue, and a link connecting the said draft-rod with the forward axle of the truck, the structure being such that the tongue-team may be employed which will be able to apply the brake upon the vehicle, and a forward or lead team may also be employed which will pull upon the vehicle irrespective of the braking mechanism, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

SAMUEL L. MITCHELL.

Witnesses:

CONYERS DARCY, G. W. HALLEMAN. 

